num_01=8   #不可变类型
list1=[1,5,9]   #可变类型
def Func1(x):
    print(id(x))
    x=9
    print(id(x))
    pass
Func1(num_01)
def Func2(x):
    print(id(x))
    x.append(8)
    print(id(x))
    pass
Func2(list1)
